Capybara feature specs for a simple Devise installation

user_registration_spec.rb

require 'rails_helper'

RSpec.feature 'User Registration', type: :feature do
  let(:new_user)  { FactoryBot.build(:user) }
  let(:user)      { FactoryBot.create(:user) }

  scenario 'User can sign up' do
    visit root_path
    first(:link, 'Sign up').click
    
    fill_in 'First name',             with: new_user.first_name
    fill_in 'Last name',              with: new_user.last_name
    fill_in 'Email',                  with: new_user.email
    fill_in 'Password',               with: new_user.password
    fill_in 'Password confirmation',  with: new_user.password
    click_button 'Sign up'

    expect(page).to have_text('You have signed up successfully')
    expect(page).to have_text("Hello #{new_user.first_name}!")
  end

  scenario 'User can sign in' do
    visit root_path
    click_on 'Log in'
    fill_in 'Email',    with: user.email
    fill_in 'Password', with: user.password

    click_button 'Log in'

    expect(page).to have_text('Signed in successfully')
    expect(page).to have_text("Hello #{user.first_name}!")
  end

  scenario 'User can sign out' do
    sign_in user
    visit root_path

    expect(page).to have_text("Hello #{user.first_name}!")

    click_on "Hello #{user.first_name}"
    click_on 'Sign Out'

    expect(page).to have_text('Signed out successfully')
    expect(page).to_not have_text("Hello #{user.first_name}!")
  end
end